#!/usr/bin/python



def num_add(x,y):
    global c 
    c = x + y
    print ("%d + %d = %d" % (x,y,c))
    print ("{0} + {1} = {2}".format())


functon.print_max(78,23)
c = 123


num_add(45,67)
print (c)
